PEARL OF THE INDUSTRY:

HYDROPHOBIC EXPANDED PERLITE

CONTENTS

1. GENERAL INFORMATION

2. PRODUCTION OF HYDROPHOBIC PERLITE

3. MARKET ANALYSIS

4. ESTABLISHMENT PLACE

5. CONTRIBUTIONS TO THE TURKISH

ECONOMY

6. ENVIROMENTAL IMPACTS

7. REFERENCES

1.GENERAL INFORMATION

1.1. The Aims of The Project

• To make HYDROPHOBIC expanded perlite fromexpanded perlite

• To obtain a material with improvedproperties(e.g.better heat insulator, filter aid, betterconstuction material)

Volcanic Rock Perlite

1.2 What Is Perlite?

Perlite is

naturally occuring mineral

silliceous volcanic rock

pearl-like luster

2. PRODUCTION OF HYDROPHOBIC EXPANDED PERLITE

PerliteExpanded

PerliteHydrophobic

Perlite

PROCESS 1: EXPANDED PERLITE

Raw perlite is heated rapidly about 700-1200°C.

Perlite is ‘popped’ like a corn.

The contained water is converted to steam.

Volume is increased to 20 times of its originalvolume.

Expansion Furnace

PROCESS-2 : HYDROPHOBIC EXPANDED PERLITE

Hydrophobicity from the Nature

Especially two main methods were tried withAlkoxysilane and Aqueous silane emulsions

ExpandedPerlite

BufferedSilane

Emulsion

HydrophobicExpanded

Perlite

• The method that choosen for this project is AqueousSilane Emulsion.

• Because the properties nonflammable and nontoxic are very important and good properties for nature and environment.

Silane is • Most appropriate silane is

polymethylhydroxysilane(PMHS).

• PMHS is an inexpensive, less toxic, air and moisturestable liquid.pH is kept around 6-8.

Procedure

2.5 grams of the emulsion of PMHS(40 wt% ) ,292 grams of deionized water which contains 6-acetoxy-2,4-dimethyl-m-dioxane

biocide in an amount to provide 0.15 percent ultimate concentration and 0.10% buffering agent(sodiumbicarbonate) is

added to 30 ml of deionized water and allowed to mix for 30 minutes.

100 grams of expanded perlite is charged in twin shell mixer.Themixed emulsion solution is slowly added over a period of 2 minutes

to the expanded perlite in the twin shell while mixing. Mixing is continued for 10 minutes to apply the emulsion solution to the

expanded perlite.

The treated expanded perlite is removed from the twin shell, is placed in an

aluminum pan, and is dried in a forced air oven for 2 hours at 100° C. to remove the

residual water.

The treated expanded perlite is tested for hydrophobicity

Water drops remain on the surface of the treated expanded perlite for longer than 30 minutes in the

water drop test. In the water solubility test, the mixture begins to separate 10 to 15 minutes after mixing. After one minute, the treated expanded perlite forms a layer on top of the water, and the

water layer is clear with no evidence of suspended particles

3.MARKET ANALYSIS

Table 1.World Perlite Reserves ( Million Ton)

Reserve Total Reserve

Cities

Total

Total

Total

Worldwide Total (rounded)

Perlite Reserves in Turkey

Largest Hydrophobic Perlite Producersin World

• Perlite Hellas Company in Greece

• Shijiazhuang Kedahua Imp. & Exp. Trade Co., Ltd. in Hebei,China

• Tianjin Incom Science & Technology Co., Ltd. in China

Main markets and Total Revenue in the World

Main Markets Total Revenue (%)

Domestic Market 40.00%

Africa 15.00%

Mid East 8.00%

Oceania 6.00%

Eastern Europe 5.00%

North America 5.00%

Southeast Asia 4.00%

Central America 3.00%

South Asia 3.00%

Eastern Asia 3.00%

South America 2.00%

Western Europe 2.00%

Southern Europe 2.00%

Northern Europe 2.00%

Total Annual Sales Volume: Above US$100 Million

Export Percentage: 51% - 60%

Cost of Hydrophobic Perlite

The price for hydrophobic expanded perlite is US $ 21 - 34 / Cubic Meter.

Application Areas

Plaster in exteriors

Cleaning oil spillages

Waterproofing requirements of roof, walls, basement

Water, heat, noise and fire insulation

4.ESTABLISHMENT PLACE

4.1 Education Level

İl Okuma yazma durumu Toplam Erkek Kadın

İzmir Okuma yazma bilmeyen 70.114 12.711 57.403

Okuma yazma bilen 3.602.148 1.814.180 1.787.968

Bilinmeyen 54.320 30.454 23.866

Toplam 3.726.582 1.857.345 1.869.237

Table 3.1.1.1: Literate Condition in İzmir

4.3 Economic Condition

• İzmir is the second largest port city of Turkey.

• 6.5% of exports of the country and 4.8% of country’s imports are made from İzmir.

• The largest port of exportation of Turkey is in İzmir. International companies numberincreases.

5.Contributions to the TurkishEconomy

• New employment opportunities

• Power saving

• Improvement of the sub-indusries

• Exportation

6. Environmental Impacts

• Environmental friendly

• Cleans petroleum residues in the sea

• Recyclable

• Loose fill, plaster can be reused

7. REFERENCES

• http://www.mineralseducationcoalition.org/minerals/perlite

• http://marmara.kimyager.org/media/KimyagerDern.B%C3%BClten10%20(2013).pdf

• http://www.google.com/patents/US4889747

• https://perlite.org//

Thank You

Group Members :

Fatma Karslıoğlu

Pelin Karşılı

Özge Köylü

John Kiiza